package com.atguigu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {


    public String paymentInfo_ok(){
        return "线程池： " + Thread.currentThread().getName() + "  paymentInfo_ok  😀";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeoutHandler",commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value="3000")
    })
    public String paymentInfo_timeout(){
        try {
            TimeUnit.SECONDS.sleep(3);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池： " + Thread.currentThread().getName() + "  paymentInfo_timeout  (*^_^*)";
    }

    public String paymentInfo_TimeoutHandler(){
        return "调用服务超时或者异常：  当前线程为： " + Thread.currentThread().getName();
    }

    //服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"),
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id){
        if (id < 0){
            throw new RuntimeException("***id不能为负数,id :" + id);
        }
        return Thread.currentThread().getName() + "调用成功，流水号： " + IdUtil.simpleUUID();
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }

}

